How to tell if your jam is bad, rot­ten or spoiled?

Consumer Voice - - Pineapple Jam -

The first sign of cau­tion with most jams is when a liq­uid be­gins to form on the top of the prod­uct. It goes down­hill quickly from there as the con­sis­tency be­comes thicker and the colour be­comes darker. Then it can de­velop an un­pleas­ant odour, which is al­most al­ways fol­lowed by an un­pleas­ant flavour and then mould. Once there is any mould at all present, the en­tire jar must be tossed. Mould spreads very quickly in a soft en­vi­ron­ment like jam or jelly, whether you can see it on the bot­tom of the jar or not. Mould spores that can cause se­ri­ous ill­ness can spread quickly and eas­ily through the en­tire jar. It's a good idea to put a la­bel on the prod­uct in­di­cat­ing the date it was opened, and, be­fore con­sum­ing, to ex­am­ine it care­fully for ev­i­dence of de­te­ri­o­ra­tion, es­pe­cially mould.

How to store the jam to ex­tend its shelf life?

All pre­served fruits should be stored in a cool dry en­vi­ron­ment not sus­cep­ti­ble to tem­per­a­ture change. When items go through tem­per­a­ture changes of cool to warm and vice versa, the mois­ture in the air tends to con­den­sate in­side the pack­ages. This mois­ture al­lows mould to grow and your jam to spoil. You should al­ways make sure to use clean uten­sils when serv­ing jams in or­der to avoid cross-con­tam­i­na­tion. Nor­mally, there is no need to store jams in a fridge. They should be stored in a cool, dry, airy place.

How long is jam good for when pre­pared in a dish?

That de­pends. In gen­eral, jam lasts only as long as the quick­est ex­pir­ing in­gre­di­ent it is mixed with.

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