I always wanted to try this (put dry ice in water) and last year I got the opportunity. When I bought some meat from Donald Russell it was delivered packed in dry ice. Dry Ice is frozen CO2 i.e. solid carbon dioxide.
This dry ice was used to keep the meat cool in transit. The meat and dry ice are transported in a polystyrene box which provides lots of insulation. However, over time, the heat does percolate a package like this and the dry ice sublimates. (That means it turns to vapour with no intermediate liquid state.)
Usually there is some solid CO2 left in the package on arrival. If There wasn’t any left the meat temperature may rise too high and the meat would be spoilt. So this is my source of dry ice.
The first thing I wanted to do, as soon as the meat was stored in a cool place, was put the dry ice in water and watch it bubble away and the vapour flow out and down the side of the container. I caught it on video below:
As far as I am aware the visible vapour is the water vapour giving the air its humidity cooled until it condenses.
Some people think teapot cleaning is unnecessary and that it spoils the flavour of the tea. If they have traditional brown earthenware teapots they probably don’t see all the tannin stains on the inside. With a stainless steel teapot you see them all and they start to form very quickly from new, or after cleaning. Tannin makes a teapot look disgusting. Not something you want guests to see when you make them a cuppa, or when they make one for you.
Teapot cleaning can be avoided by keeping it clean. One way is to make sure it’s emptied and rinsed out immediately after use. Letting it stand with old tea in it until the next mash allows the tannin deposits to grow.
Fieldfare – Turdus pilaris – a member of the thrush family.
When Fieldfares visited Alvaston Derby I was ready with my camera.
On 22nd January 2013 Fieldfares visited Alvaston Derby where I saw them. First I saw them in my garden and later in a tree overhanging my friend’s garden across the road in the same street. Of course I don’t know that they were the same pair of birds in both gardens.
Fieldfares migrate to England in winter from northern Europe but this was my first sighting of them. It was a bad winter with a fair amount of snow in early 2013 so I’m sure they came looking for food.