Lead crystal is used mainly for fine dishes, ornamental vases and decanters. The items made from it are very beautiful, but on the other hand they are very delicate as well. So, be extremely careful when cleaning lead crystal items. There is a risk of damaging them in case you do not use the proper cleaning tools and products or if you use very hot water. In the next few lines I will share with your some tips that will make the whole process easier and more effective. 

 The first step in this cleaning mission is to put a rubber mat on the floor of your kitchen sink. If you can not find a rubber mat nearby, you can use a towel instead. Now when you have covered the bottom of the sink, fill it with warm water and add 1 table spoon of liquid dish detergent. Some people try to wash their lead crystals dishes in a dishwasher, but professional cleaners claim that this is not recommended at all. 

 Cleaning experts such as cleaners in Highgate warn that your lead crystal items should not go in the sink with the warm water unless they have reached room temperature. For example, if there was ice or hot liquids in them recently, you have to wait to avoid damaging them. Only then it will be safe to place your lead crystal items in the sink. Also take into account that you should not add too many pieces at once, because they may crack. 

Once your lead crystals are in the water-detergent solution allow them to soak for approximately half an hour in case there is too much dirt or food stains on them. If not, you can proceed with cleaning right away. A soft and non-abrasive sponge can be used to wipe them. 

 Now, it is time to rinse the lead crystal in warm water. Then to dry the items you can use either a terry cloth or microfiber. Leaving them to air-dry is not recommend because at the end there will be water spots.