1. Flour made from the five types of grains (wheat, barely, oats, rye and spelt), that came into contact with water, and was left to sit (not being baked within 18 minutes from the time it got mixed), is Hametz.

2. Store owners who stock open food that is Kosher for Passover must store it separately to insure that no Hametz falls in and make it unkosher.

3. One may not buy food for Pesah from someone who sells unkosher food as well, unless it is in a closed package with the proper seals testifying to its being kosher. Without this, we do not rely on the reputation of the store owner for Kashrut of the Passover foods.

4. It is customary to check rice 3 times carefully before cooking to ensure that no wheat is mixed in with it.

5. A Sepharadi who has an Ashkenazic guest for Pesah, must take care not to cause the Ashkenazic guest to transgress the laws that he is accustomed to keeping on Pesah. This also applies to other laws that Ashkenazim may have during the rest of the year.

6. An Ashkenazi may eat food cooked in one's house who is lenient in eating legumes on Pesah, as long as the vessels are cleaned thoroughly before they are used to cook with.

7. An Ashkenazic woman who is married to a Sephardic man, who eats rice on Pesah, may cook rice for her husband on Pesah. She may also be lenient and eat the rice on Pesah if she wishes. It is, however, preferable that she do so only after making a dissolution of vows. This rule applies similarly to any other laws Ashkenazim have on Pesah.

8. A Sephardic woman married to an Ashkenazic man, may not cook rice for herself in her husband's house on Pesah. When she is in her parents house, however, she is permitted to eat rice and legumes.

9. If one finds a split wheat kernel in a cooked dish of rice or the like, even if only the least bit opened, the entire dish becomes forbidden. This is so even if there are sixty parts of rice against the wheat. In suck an instance, one must wait twenty-four hours and then kosher the pot by immersing it in boiling water.

10. If wheat was found in a rice dish while it is being cooked, the rice may not be eaten even if the wheat is removed.

11. It is permitted to eat salted fish or cheese that is salted before Pesah even if the salt was not checked for crumbs of leaven.

12. Jelly or jam that was made during the year in a Hametz container, is still considered kosher for Pesah for Sepharadim.

13. Food mixed in with citric acid granules (which are processed with leaven) may be used. It is preferable to buy such floods before Pesah.

14. Food mistakenly cooked on Pesah in a Hametz pot that had not been used for over twenty-four consecutive hours may be eaten.

15. It is permitted to use perfume and other cosmetic items on Pesah (that may contain leaven), because they are not even suitable for a dog to eat. Similarly, snuff that is made with grain alcohol (which ids absolute leaven) may be used on Pesah.

16. A dishwasher that washes with boiling water and soap may be used on Pesah after it has been thoroughly cleaned. The machine should be put through one cleaning cycle when empty.

17. A microwave oven is permitted to use on Pesah, after cleaning the microwave well, the food is placed in a closed carton or wrapped in plastic. Some authorities maintain that if water contain a "spoiling" factor (soap or detergent that was boiled in it, and the walls of the microwave absorbed the vapors), This suffices in koshering the microwave.

18. One should take care not to buy roasted peanuts or sunflower seeds if they do not have proper certification testifying to their kashrut, because flour is often mixed in with the salt that is on them.

19.Fine salt is Kosher for Passover