PURITY TESTING IN FOOD PRODUCTS TIPS

WATER:

As Per Environmental Protection Agency (EPA), before you test water you should contact your water supplier and get a copy of Your annual water quality report. Once you've done that, in order to test water quality, you need a water quality kit. There are numerous water quality kits on the market, but they all are pretty much the same in procedure: they give you various strips which show you the amount of chlorine, copper, iron, and the pH level of your water as well as the hardness of your water.

Steps to Check Purity in Water:

STEP 1 : Fill a glass with cold or warm, but not hot water.

STEP 2 : Dip the strip which is labeled as the test for pH, alkalinity, chlorine and hardness in the glass of water. Keep the strip submerged for at least five seconds, waving it back and forth in the water 

STEP 3 : Remove the strip from the water, shaking off excess droplets of water. Wait 20 seconds. As you wait, get the color chart ready so that you can match up the colors on your strip with the ones displayed on the chart.

STEP 4 : Complete the color matching within 10 seconds. For example, a red or dark blue square for pH levels is dangerous, but a gray-green square is fine.

STEP 5 :Repeat these steps with the strips for iron, nitrate and copper.

Hydrogen Sulfide TEST:

STEP 1 : Turn on the cold water tap and leave it on for two minutes.

STEP 2 : Inhale deeply as the water runs, smelling the air. If you smell an odor of rotten egg, you have a problem with hydrogen sulfide. 

STEP 3 : Repeat this test with the hot water tap. If you smell a rotten egg odor on both taps, then you have a hydrogen sulfide problem. If it's just one tap, the hot tap or the cold tap, then it's likely that hydrogen sulfide is not a problem. 

SUGAR:

sugar was created by allowing sugar cane juice to evaporate, which would leave behind the crystallized sugar. Modern sugar is put through a refining process that extracts the juice from sugar cane or sugar beets, then refines it into pure white crystals or powder. By using a test that will determine their purity using basic methods as specified Below:

STEP 1 : Take a Crystal Glass of  pure water .

STEP 2 : Pour 2 spoons of sugar from sugar bag which you want to test

STEP 3 : Stir thoroughly with spoon until the sugar completely dissolves in water 

STEP 4 : Inspect the Glass thoroughly if any foreign particulates in the bottom of glass or floating in water its not a pure sugar.

Honey:

Check the label. You would be amazed at how many people neglect to look closely at the label of food products before buying them, and then are dismayed to find they bought something they really didn't want. Check around the brand name, and the ingredients list (if there is one) for a mention of additives. The company should be required to list them if you are shopping in certain countries. If there are no mentions of additives, buy the honey.

Taste the honey. If it seems off, and yet the label claims it is pure, there are a few simple tests you can run to check the purity of the honey.

The dissolving test. Get a glass of water.And a tablespoon of honey are all you need for the first test.   Empty the honey into the water. If the honey is impure, it will dissolve in the water- the most common additive to honey is syrup of jaggery, which dissolves. If it is pure, the honey will stick together and sink as a solid lump to the bottom of the glass. This test can also be completed by mixing equal parts honey and methylated spirits (denatured alcohol). Pure honey will settle to the bottom. Impure honey is more likely to remain dissolved and make the solution milky.

The flame test. Get a lighter and a candle with a cotton wick. This test is better if you don't have as much honey to spare. Dip the cotton wick of the candle into a bit of the honey, and shake off the excess. Attempt to light the wick. If it burns, then it is completely pure honey. If it refuses to burn, then the presence of water is not allowing the wick to burn. (If there is only a very small amount of honey on the wick, though, it might still burn. It will produce a crackling sound, and it would be best to blow out the wick and try it again this time using more honey.)

The absorption test. Pour a few drops of honey on blotting paper and observe whether or not it is absorbed. If it's absorbed, the honey's not pure.(f you don't have blotting paper, pour a little bit of honey on a white cloth, then wash the cloth. If there is any stain left by the honey, it is probably not pure.)