I've been teaching a series on cleaning science these past 4 newsletters. Last week, I gave some examples of how to think through the cleaning of soap scum and glass etching in showers. This week, we're going to share my biggest secrets... "Ken, how do you get the kitchen sink so clean?"
Tarnish on Stainless Steel – This is formed through chemistry (oxidation and mineral ions in hard water). The tarnish layer is acidic and requires only A & C to clean. You need a product like Bar Keeper’s Friend™, which has an acidic pH of 1.5 to 2.5. It eats the tarnish instantly, thus temperature and time are not relevant. With the soft part of a sponge or cloth, you can use light agitation to remove the tarnish. For stubbornly tarnished sinks, use more product and more agitation like a scrub pad or light steel wool.
Discoloration on White Ceramic or Stone-Based Sinks – These surfaces are very porous and react with food and the metal in wet silverware. The reaction that occurs discolors the white to a yellow, blue, or orange (rust) color. The most effective solution requires C & T. Use a heavy alkaline like ammonia or bleach with a pH of 11-13. Allow the chemistry to work with a 2-5 minute dwell time (from experience). The stronger the alkaline, the less time is needed.
Now that you understand what dirt is and how to suspend it with TACT, let's cover some common usages of this TACT formula. Everyone asks me about soap scum and spots on shower glass. Let's dive into those today!
SOAP SCUM ON SHOWER WALLS - Soap scum is a substance chemically formed when the calcium & magnesium ions in hard water mixes with the fatty acids from the soap and dirt & oils from the body. It is carried in the steam to the walls and settles in the tub. Once cooled, it hardens and over time it layers. Soap scum has a slightly basic pH. You will need all 4 dials to effectively clean soap scum. Spray an acidic multipurpose cleaner onto the surface and allow to dwell to the product instructions. Then use agitation and hot water to complete the suspension to clean it. Scrub through the dirt. You can feel when the surface is clean. Your cleaning tool starts to glide. Then rinse with hot water.
HARD WATER ON GLASS SHOWER DOORS – “Etching” is a chemical process or erosion on a porous surface. It happens most commonly on glass shower doors. The hard water droplets have TACT. The pH of the hard water is acidic. Over time, they erode the surface of the glass and harden beneath the surface. You can clean the water spots off the glass surface with T, A, C & T, but the spots in the valleys of the etched glass are very difficult to clean. Once a glass shower door is etched, by definition, it is ruined. Teach your clients & prospects how vital it is to squeegee the droplets off the glass EVERY time, otherwise be prepared to budget for new doors every 5-10 years. This solution is education-based and impresses them.
In this video, you will learn a basic system for efficiently suspending soil (aka 'dirt') so you can remove it! TACT is an acronym that will give you the knowledge to remove the guess-work from cleaning as there really is a science!
T – Temperature – The dial goes from cold to hot.
A – Agitation – This dial goes from wiping to steel wool and blades.
C – Chemistry – This dial goes from 0 to 14 on the pH scale.
T – Time – This dial goes from immediate up to 10 minutes, typically.
Keep TACT in mind and fully understand each letter. This allows you to clean difficult & layered soils quicker without damaging any surfaces! Once you understand how to remove dirt, you can begin to clean more efficiently without damaging surfaces. I'll share some examples on upcoming newsletters!
Before you can effectively remove dirt, you need to understand what it is! This video is part one for this month's newsletter theme of "Cleaning Science Tips". You will absolutely be disgusted, but it's for the best... I promise!
Dirt or soil varies greatly depending on which part of the home you’re cleaning. At the macro-level, get ready to deal with:
Once you identify the DIRT you're dealing with, you need to suspend the DIRT to remove it. We'll cover this next week in our "Cleaning Science Tips: How to Use TACT".
Over my 15 years of professional cleaning for home & small business owners, I have seen that 90% of people DO NOT disinfect correctly. This video serves as an introduction to the 5-part FREE video course "How to Disinfect Properly", where I break down the "9 Mistakes of Disinfection".
Click here to access your FREE course!
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This is not a step-by-step guide to killing Coronavirus (COVID-19). The CDC doesn't even have that yet. This month's newsletter is a DIY on how to reduce the potential of the virus in your home. I am NOT an expert in disinfection, rather a cleaning professional that learns & relies on the CDC, NIH, and WHO as they publish new guidelines. They are the experts. I am a practitioner. Therefore, this article contains 4 useful tips to safeguard your family with links to the experts. Get educated and be safe!
"Even though the CDC has said on their website that contracting the new coronavirus from surfaces has yet to be seen, the agency and the World Health Organization (WHO) have strongly suggested cleaning and disinfecting frequently touched surfaces daily to limit the spread of the virus." [Full Article]
Here are some general tips!
(1) CLEAN FIRST, THEN DISINFECT -- Check out this article from the CDC on how to clean surfaces and especially the importance of cleaning BEFORE disinfecting. This strategy also applies to hand disinfection... Clean with soap and water for 20 seconds and then use hand sanitizer to be most effective.
(2) WHAT TO USE -- There are many effective ways to disinfect surfaces. Alcohols (ethanol 95% and isopropyl 70%), bleach (diluted), peroxide, and many more. The CDC has a recommended list on the above article. Choose one!!!
(3) READ THE INSTRUCTIONS -- The chemical or alcohol you choose requires TIME to break down the protein/lipid outer shell of the virus to kill it entirely or make it less harmful to the body. Don't just spray and wipe! Every disinfectant has a contact time to do it's work! In general, 10 minutes covers most chemicals, bit it has to stay wet for that time. Some are less like alcohols.
(4) USE THE 80/20 RULE -- It's not feasible to disinfect 100% of the germs in your home or place of business, but you can hyperf0cus with the 80/20 Rule. 80% of the germs reside on 20% of the surfaces. Focus on those 20% and you'll significantly reduce your risk! Here's a list of the 20% for offices.
(5) DO IT OFTEN -- Yes, hire a cleaning service to do this thoroughly as most are trained to do such. But 80+% of the responsibility falls on you to follow the recommendations of the CDC and WHO to disinfect daily.
Let's redefine "dirtiest" to the word you actually care most about... "germiest".
You want to avoid sickness and with flu season right around the corner, this is a great time to assess the cleanliness of your office.
In an article published by WebMd on December 23, 2018, Dr. Laura J. Martin, MD shares her professional insights. She sites 15 common office locations that tend to gather the most germs (aka bacteria) and strategies to sanitize and/or avoid them. The article does a great job, so I won't attempt to re-write it. I will simply list the 15 areas, site her takeaways, and add my perspective as a cleaning company owner for 14 years. This article could be a great resource for an upcoming staff meeting as well as a solid checklist for your cleaning service to evaluate in hopes of reducing your sick day call outs this cold & flu season!
Ken Carfagno is a presentation cleaning specialist serving the Indian Valley, PA.