I have been doing just that and also laying in extras of vitamins and supplements, OTC meds as well as cat food and litter.
Don’t forget salt.
It is essential for survival and many people don’t think of it or list it.
And toiletries and cleaning supplies. It’s not hard to have a couple years worth of soap and shampoo and dish soap and laundry detergent on hand especially if used assiduously.
Good old fashioned bar soap is more space effective than bottles of liquid.