There is no problem since the date of expiration is recent.
Yes, yeast can go bad and become ineffective for baking if it is expired or not stored properly. This can result in the yeast not being able to properly ferment and leaven the dough, leading to baking failures.
No. Baking will not make spoiled juice taste fresh. The heat of baking won't freshen any stale ingredient.
I just used some baking soda that is 4 years expired. Did the water test (tsp of soda - add a little water - see if it fizzes) to make sure it was potent. Then went on to use it. I had NO problems baking biscuits with it. Turned out great.
If the "clay" is dough made from food stuffs (flour, etc), yes, it could go bad, and you should bake it. Modeling clay that is not made from food products, however, should be fine.
Yes
The expiration date on eggs usually refers to the length of time the yolk will provide an attractive appearance if the egg is fried. If the eggs have expired, they have not gone bad but the protein has begun to break down a little bit. They are still fine for baking so have pancakes for breakfast for the next few days.
It is not improper to bake your own wedding cake. It is your decision because it is your special day. Baking your own cake may go against tradition and is rumored to bring bad luck, but many disregard that. Do whatever you want to make your wedding day perfect!
Expired medication can be ineffective and dangerous.
We have used it in cereal when we were out of milk. It is not bad and better than some of the soy products out there. Also check this link (below) regarding cooking/baking with non-dairy creamer.
Yes, Irish moss can go bad. You can tell if it has expired by checking for any signs of mold, discoloration, or a foul smell. Expired Irish moss may also have a slimy texture and a bitter taste. It is best to discard it if you suspect it has gone bad.
You think its that easy, to just ask on a website for codes? Well too bad for you all of them are expired.
The first thought is that one may have forgot to add baking powder, or not enough baking powder or the baking powder was bad. Baking powder is perishable. To test a batch, add 1 teaspoon to ½ cup hot water. If it doesn't bubble, throw it out.