I’ve preserved all our other allotment and foraged fruit in one way or another – raspberry jelly, redcurrant relish, rose hip syrup. I thought this time I’d give canned blackcurrants a go. Home canning (in glass jars that is!) is much more popular in the US than it is here in the UK, but I’ve always fancied giving it a go.
Canning, according to Wikipedia, “Is a method of preserving food in which the food contents are processed and sealed in an airtight container. Canning provides a shelf life typically ranging from one to five years, although under specific circumstances it can be much longer.”
Some websites I’ve visited say you need special equipment; a big stove-top canner – much like a pressure cooker – for starters. A jar rack, jar lifter, funnel… In practice, the only foodstuffs that need to be canned in a high pressure canner are meat, seafood, dairy and most vegetables (sweet tasting ones such as carrots, beetroot, sweetcorn, peas and beans). Fruit (which is what I’ll mainly be canning) and acidic vegetables can be done using the water bath method in a large heavy-bottomed saucepan. It’s not absolutely necessary for them to reach the 116-130ºC temperature necessary for the first group of foods.
I used utensils I already had to hand. Aforementioned heavy bottomed pan. A jam thermometer to be perfectly sure the water bath got to the optimum temperature. A funnel to make sure the little berries didn’t bounce all over the floor and under the kitchen cabinets as I tried to pour them into the jars. A wire cooling rack to keep the jars from rattling against the bottom of the saucepan during boiling. A pair of tongs to lift the jars out of the hot water. Some vintage Mason-type jars with new rubber seals. It is important that jars are in perfect condition with no chips or ill-fitting lids. If they aren’t they won’t be air-tight and contents will spoil and may prove a health risk!
Here’s the method…