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Yield: 7 to 9 pint jars
The yield from this recipe is about 8 eight-ounce jars (which is the same as 4 pints).
It's fun to go pick your own (admittedly, that's hard to find except in semi-tropical areas) and you can obviously get better quality ones!
As mentioned in the Ingredients section; you may use frozen mangoes (those without syrup or added sugar); which is especially useful if you want to make some jam in December to give away at Christmas!
Jam can ONLY be made in rather small batches - about 6 cups at a time - like the directions on the pectin say, DO NOT increase the recipes or the jam won't "set" (jell, thicken). (WHY? Alton Brown on the Food Channel says pectin can overcook easily and lose its thickening properties. It is easier and faster to get an even heat distribution in smaller batches. It takes about 8 cups of raw, unprepared mangoes per batch; you'll need 6 cups of mushed mangoes.
Green mangoes are fairly firm, so a regular vegetable peeler works pretty well.
The mango on the left is dead ripe, the one on the right was very firm.
This is probably the most tedious step of the process, though.
Cut out any brown spots and mushy areas.
Slice the mangoes in 1/4 thick slices!
It just takes practice to figure out where the pit is. the pit is sort of flat, rather than egg-shaped, so you'll get more flesh of some parts of the mango than others.
Then chop the mango slices up into 1/4 inch (.5 cm) or smaller cubes.
Now's a good time to get the jars ready, so you won't be rushed later. The dishwasher is fine for the jars; especially if it has a "sanitize" cycle, the water bath processing will sanitize them as well as the contents! If you don't have a dishwasher with a sanitize cycle, you can wash the containers in hot, soapy water and rinse, then sanitize the jars by boiling them 10 minutes, and keep the jars in hot water until they are used.
NOTE: If a canning recipe calls for 10 minutes or more of process time in the canner, then the jars do not need to be "sanitized" before filling them. But really, sanitizing them first is just good hygeine and common sense! See this page for more detail about cleaning and sanitizing jars and lids.
Put the lids into a pan of hot, but not quite boiling water (that's what the manufacturer's recommend) for 10 minutes, and use the magnetic "lid lifter wand" to pull them out. Leave the jars in the dishwasher on "heated dry" until you are ready to use them. Keeping them hot will prevent the jars from breaking when you fill them with the hot jam.
The precise measurements are found in each and every box of pectin sold. For most fruit; like mangoes, with the low sugar pectin, you'll need 4 cups of sugar. With regular pectin, about 7 cups of sugar. I prefer to use 4 cups of sugar AND the NO-sugar pectin - that seems to give the best results of set, color and flavor, better than regular or low-sugar pectins. Mix the dry pectin with about 1/4 cup of sugar and Keep this separate from the rest of the sugar. If you are not using sugar, you'll just have to stir more vigorously to prevent the pectin from clumping. This helps to keep the pectin from clumping up and allows it to mix better!
If you would rather try to make jam with no added sugar, click here for those directions!
Stir the pectin into the mangoes and put the mix in a big pot on the stove over medium to high heat (stir often enough to prevent burning). It should take about 5 to 10 minutes to get it to a full boil (the kind that cannot be stirred away).
Why use pectin? You may run into grandmotherly types who sniff "I never used pectin!" at you. Well, sure, and their generation took a horse and buggy to work, died of smallpox and ate canned meat and green beans that tastes like wet newspapers. Old fashioned ways are not always better nor healthier. Pectin, which occurs naturally in fruit, is what makes the jam "set" or thicken. The pectin you buy is just natural apple pectin, more concentrated. Using pectin dramatically reduces the cooking time, which helps to preserve the vitamins and flavor of the fruit, and uses much less added sugar. But, hey, if you want to stand there and stir for hours, cooking the flavor away, who am I to stop you! :) Having said that, there are some fruits that have naturally high amounts of pectin (see this page for a list) and they simply don't need much or even any padded pectin.
Notes about pectin: I usually add about 25% - 30% more pectin (just open another pack and add a little) or else the jam is runnier than I like. With a little practice, you'll find out exactly how much pectin to get the thickness you like.
Another tip: use the lower sugar or no-sugar pectin. You can add sugar to either and it cuts the amount of sugar you need from 7 cups per batch to 4 cups or less! And it tastes even better! On the other hand; I have never had success with the No-sugar pectin without adding ANY sugar. It always turned out runny and bland. You might want to try using the low sugar or no-sugar recipe with a mixture of sugar and Splenda; sugar and white grape juice, or just white grape juice - that will cut down the sugar, but still preserve the flavor.
|Type of jam||
Type of pectin to buy
|regular||no-sugar or regular||7 cups of sugar|
|low sugar||no-sugar||4.5 cups of sugar|
|lower sugar||no-sugar||2 cups sugar and 2 cups of Splenda|
|no sugar||no-sugar||4 cups of Splenda|
|natural||no-sugar||3 cups fruit juice (grape, peach, apple or mixed)|
Lids: put the lids into a pan of hot water for at least several minutes; to soften up the gummed surface and clean the lids./p>
When the mango-pectin mix has reached a full boil, add the rest of the sugar (about 4 cups of sugar per 6 cup batch of mangoes) or other sweetener, and then bring it back to a boil and boil hard for 1 minute... If you bring it back to a full boil fairly slowly (on medium heat rather than high) that will help reduce foaming.
Remove from the heat./p>
Foam... What is it? Just jam with a lot of air from the boiling. img border="0" src="figs/foam.jpg" width="142" height="139" align="right"> But it tastes more like, well, foam, that jam, so most people remove it. It is harmless, though. Some people add 1 teaspoon of butter or margarine to the mix in step 6 to reduce foaming, but food experts debate whether that may contribute to earlier spoilage, so I usually omit it and skim.
But save the skimmed foam! You can recover jam from it to use fresh! SSee this page for directions!
I keep a metal tablespoon sitting in a glass of ice water, then take a half spoonful of the mix and let it cool to room temperature on the spoon. If it thickens up to the consistency I like, then I know the jam is ready. If not, I mix in a little more pectin (about 1/4 to 1/2 of another package) and bring it to a boil again for 1 minute./p>
Notes about "set" (thickening or jell): It takes 3 ingredients for jams and jellies to set: pectin, sugar and acidity. The amount of pectin that is naturally occurring in the fruit varies from one type of fruit to another and by ripeness (counter intuitively, unripe contains more pectin). See this page for more about pectin in fruit. It takes the right balance, and sufficient amounts of each of pectin, sugar and acidity to result in a firm jam or jelly. Lastly, it takes a brief period (1 minute) of a hard boil, to provide enough heat to bring the three together. Generally speaking, if your jam doesn't firm up, you were short in pectin, sugar or acidity or didn't get a hard boil. That's ok - you can "remake' the jam; see this page!
Why? Otherwise, the fruit will often float to the top of the jar. This isn't a particular problem; you can always stir the jars later when you open them; but some people get fussy about everything being "just so", so I've included this step! Skipping this step won't affect the quality of the jam at all. I usually don't bother. /p>
You'll also notice that the less sugar you use, the more the fruit will float (chemists will tell you it is due to the decreased density of the solution!)
Fill them to within 1/4-inch of the top, wipe any spilled jam off the top, seat the lid and tighten the ring around them. Then put the filled jars into the canner! p>
This is where the jar tongs come in really handy!
Keep the jars covered with at least 2 inches of water. Keep the water boiling. In general, boil them for 10 minutes, which is what ureJell (the makers of the pectin) recommend. I say "in general" because you have to process (boil) them longer at higher altitudes than sea level, or if you use larger jars, or if you did not sanitize the jars and lids right before using them. The directions inside every box of pectin will tell you exactly. The directions on the pectin tend to be pretty conservative. Clemson University says you only need to process them for 5 minutes. I usually hedge my bets and start pulling them out after 5 minutes, and the last jars were probably in for 10. I rarely have a jar spoil, so it must work. But you don't want to process them too long, or the jam will turn dark and get runny. See the chart below for altitude adjustment to processing times, if you are not in the sea level to 1,000ft above sea level range.
Note: Some people don't even boil the jars; they just ladle it hot into hot jars, put the lids and rings on and invert them, but putting the jars in the boiling water bath REALLY helps to reduce spoilage! To me, it makes little sense to put all the working into making the jam and then not to process the jars to be sure they don't spoil!
Recommended process time for jams in a boiling water canner. (ref: Ball Blue Book)
|Process Time at Altitudes of/strong>|
|Style of Pack||Jar Size||0 - 1,000 ft||1,001 - 6,000 ft||Above 6,000 ft|
Lift the jars out of the water with your jar lifter tongs and let them cool without touching or bumping them in a draft-free place (usually takes overnight) You can then remove the rings if you like, but if you leave them on, at least loosen them quite a bit, so they don't rust in place due to trapped moisture. Once the jars are cool, you can check that they are sealed verifying that the lid has been sucked down. Just press in the center, gently, with your finger. If it pops up and down (often making a popping sound), it is not sealed. If you put the jar in the refrigerator right away, you can still use it. Some people replace the lid and reprocess the jar, then that's a bit iffy. If you heat the contents back up, re-jar them (with a new lid) and the full time in the canner, it's usually ok. p>Once cooled, they're ready to store. I find they last up to 12 months. But after about 6 to 8 months, they get darker in color and start to get runny. They still are safe to eat, but the flavor and texture aren't as good. So eat them in the first 6 months after you prepare them! Another trick is to keep the uncooked mangoes or other fruit in the freezer and make and can the jam as needed, so it's always fresh.
From left to right:
You can get all of the tools in a kit here:
Summary - Cost of Making Homemade Mango Jam - makes 8 jars, 8 oz each***
|Item||Cost in 2019||Source||Subtotal|
|Mangos||14 (it varies on the size and variety!)||$1 each for large mango||Costco||$14.00|
|Canning jars (8 oz size), includes lids and rings||8 jars||$/dozen 8 oz jars||Grocery stores, like Public, Kroger, Safeway and sometimes, Big Lots, local hardware stores and big box stores||$5.00|
|Sweetener - see step 4||4.5 cups||$1.75||Grocery stores, like Public, Kroger, Safeway and sometimes, Big Lots, local hardware stores and big box stores||$1.75|
|Pectin (no-sugar, low sugar or regular, dry)||1 and a quarter *||$2.00 per box||
or about $3.00 per jar
|* pectin use varies - Mango
Jam needs very little, raspberry a little more, strawberry the most.
** - This assumes you already have the pots, pans, ladles, and reusable equipment. Note that you can reuse the jars! Many products are sold in jars that will take the lids and rings for canning. For example, Classico Spaghetti sauce is in quart sized jars that work with Ball and Kerr lids and rings- some authorities do not recommend these, saying they are more prone to break, and while I have found that is true of mayonnaise jars, I have found the Classico spaghetti jars to be pretty sturdy.
As my jars are cooling after i take them out of the canner, they sometimes
make a popping or hissing noise. Is this normal and safe?
Yes, the lids are designed to flex and that's actually a key selling point. You can tell if a jar hasn't sealed properly (after it has cooled completely) if the lid flexes and makes a popping sound when you press the center of the lid with your finger. The popping sounds while it is cooling is the lid being sucked down by the vacuum that is forming inside the jar - which a normal part of the sealing process. Hissing sounds are usually just escaping steam or hot water evaporating on hot surfaces, also normal!
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