In this class, we created our first potion, the Boil Cure.

A boil is a localized infection in a gland. In the magical healing process, the potion is applied topically to the affected area, causing the boil to grow and burst, so that it can then be completely drained. Then we must clean the area and apply dictamus essence. It should also be covered and allowed to heal naturally.

There are three units of thermodynamic temperature: Kelvin, Celsius and Fahrenheit. Kelvin is named after William Thomson, who was the first Baron Kelvin.

Protective glasses must be worn at all times in the laboratory. Although you can access the eyewash station in case of an accident.

The Stirring Charm is Halato (hah-LAH-toh), and you'll need to move your wand clockwise or counterclockwise, depending on what the potion says.

Estimated Preparation Time (EBT):

Pewter Cauldron: 44 minutes

Brass Cauldron: 40 minutes and 6 seconds

Copper Cauldron: 36 minutes and 33.4 seconds

Ingredients:

750 ml of water

6 snake fangs

4 horned slugs

2 porcupine quills

3 measures of worm mucus

Instructions:

Part One:

     1. Add 750 mL of water to your cauldron and bring the temperature to 363 Kelvin (90°C/194°F).

     2. Add the six snake fangs to your mortar and crush them until you get a fine consistency even with your mortar.

     3. Take the scoop you see next to your mortar and add four measures of the tusks to your cauldron.

     4. Heat your cauldron to 383 Kelvin (110°C/230°F) for ten seconds, then lower the flame to 363 Kelvin (90°C/194°F). Be careful not to light your instruction sheet, each other, or anything else in the classroom as you adjust the temperature up and down.

     5. Wave your wand clockwise once. At this point, your potion should have a pinkish hue.

     6. Depending on your caldero, your preparation times will vary. For the purpose of today's lesson, you can leave your pewter cauldron boiling for 22 minutes. Throughout much of the making of this potion, you'll notice that even when the color of the potion changes, the smoke still has a pink hue. (If you were using a brass cauldron, the brew time would be approximately 19 minutes 48 seconds. Copper cauldrons have a brew time of 17 minutes 49.2 seconds during this step.)

The second part:

     1. At this point, the four horned slugs should be added directly to the cauldron.

     2. It is important during this step to completely remove the cauldron from the flame before adding the porcupine quills. If you don't, the potion will emit a terrible odor and your cauldron will melt. When this happens, the compound has been known to cause very painful boils.

     3. Now that your cauldron is off, add two Porcupine Quills to the potion, then reheat it.

     4. Move your wand clockwise five times, making sure the heat is still at 363 Kelvin (90°C/194°F).

     5. Allow the potion to finish brewing for 17 minutes (this would be 15 minutes and 18 seconds for a bronze cauldron or 13 minutes and 46.2 seconds for copper).

To end:

     1. At this point, remove the cauldron completely from the flame. The potion should be sky blue in color and will start to stop smoking as it cools.

     2. Add worm mucus (about three measures) and allow to thicken for about five minutes.

     3. Stir the potion with a wooden spoon to ensure it has a smooth consistency, then use a funnel to bottle it into a clear glass or glass vial. Remember to correctly label your vial before storing it.

To store potions, you must also take into account what the potion instructions indicate. Thus we must take into account the amount of light, and the temperature, since both factors affect the expiration of the potion and its storage method.

In this case, the cure for boils is kept at room temperature and with a maximum time of four years before discarding it.