Yes, nitrile gloves are food safe and are widely used in the food service industry. They are a preferred choice because they're durable, resistant to punctures, and don't contain natural rubber latex proteins, which can cause allergic reactions.

Yes, but not to all chemicals. Nitrile gloves offer good chemical resistance against many substances, including oils, greases, weak acids, and caustics. However, they provide poor protection and should not be used with certain chemicals, such as ketones (like acetone), aromatic solvents (like benzene), and strong oxidizing acids (like nitric acid). The thickness of the glove and the duration of exposure also affect its protective ability. Always check a chemical resistance chart to ensure the gloves are compatible with the specific substance you're handling.

Not all nitrile gloves are sterile. Nitrile gloves can be either sterile or non-sterile. Sterile gloves undergo a specific sterilization process (like gamma radiation or ethylene oxide gas) and are individually packaged to maintain a germ-free state. They are used for high-risk procedures like surgery where maintaining a sterile field is critical to prevent infection. Non-sterile gloves are the most common type and are used for general tasks, medical examinations, and food handling where a clean barrier is needed but a sterile environment isn't required. Always check the packaging to confirm if the gloves are sterile.

No, disposable nitrile gloves are not meant to be reused. They are single-use items designed to provide a sanitary and effective barrier for a specific task. Once a glove is taken off, its structural integrity can be compromised, leading to a loss of protection from punctures and tears. Reusing them can also spread germs and chemicals, a major risk known as cross-contamination. For these reasons, it is crucial to dispose of them properly after each use and grab a new pair when needed.

Yes, nitrile gloves do not contain natural rubber latex. They are made from a synthetic rubber called nitrile butadiene rubber (NBR), which contains none of the proteins found in natural rubber latex. This makes them an ideal and safe alternative for individuals with latex allergies or sensitivities, as they eliminate the risk of allergic reactions while still providing a strong, durable, and chemical-resistant barrier.

The difference is primarily in regulation and defect standards.

• Medical-grade gloves (also known as exam-grade) are regulated by the FDA and must pass stringent tests for barrier integrity, with an Acceptable Quality Level (AQL) of 2.5 or lower. This means they are statistically proven to have fewer pinholes and defects, ensuring a reliable barrier against bodily fluids and pathogens.
• Industrial-grade gloves are not FDA-regulated for medical use. They have a more lenient AQL, typically 4.0, and are designed for general-purpose tasks like cleaning, chemical handling, or automotive work. Their primary purpose is to provide a durable barrier for the user, not necessarily to protect against biohazards.

The key difference lies in the presence of a cornstarch powder.

• Powdered gloves contain cornstarch, which makes them easier to put on and take off, especially with sweaty hands. However, the powder can become a carrier for allergens and can contaminate surfaces or products, which is a major concern in medical and food handling environments.
• Powder-free gloves go through a process like chlorination to make them easier to don without the use of powder. They reduce the risk of contamination and allergic reactions. Due to these safety advantages, the FDA banned powdered gloves for medical use in 2017, making powder-free the standard in healthcare and food service.

Unopened boxes typically have a shelf life of 3 to 5 years when stored correctly in a cool, dry, dark place away from direct sunlight, heat, and moisture.

Black nitrile gloves are primarily used in industries where a professional appearance is valued and where staining is common. The black color effectively hides dirt, grease, oil, ink, and other stains, giving the user a clean look.

They are popular in:

• Automotive and mechanical work: To hide grease and oil.
• Tattoo and piercing studios: To conceal ink and blood.
• Hair and beauty salons: To hide hair dyes and other chemicals.
• High-end food service: For a sleek, professional aesthetic.

While they have the same protective properties as other colored nitrile gloves, their color is a key functional and aesthetic benefit.

No, nitrile gloves are not puncture-proof. They are puncture-resistant, meaning they offer a good level of protection against punctures and tears, especially compared to vinyl and latex gloves. However, they are not impervious to all sharp objects. The level of resistance depends on the glove's thickness (measured in "mils") and the force or sharpness of the object.