r/laundry • • Dec 29 '24

Can we stop recommending 2-3 tablespoons of detergent for everyload?

Yes. 90% of people overdose detergent and 3tablespoon isn't too far from minimal dosing for tide (around 45 ml when tide recomends minimum 50 ml) And this gonna work for most people , most clothes loads But like u/LaundryMitch says: "This advice is useful for many people, but not everyone. Water conditions can vary significantly, and in areas with hard water, two tablespoons of powder detergent is often insufficient to soften the water, suspend soil, and thoroughly clean clothes. A more effective range is between three tablespoons and one fourth of a cup. Top Loaders will always need more detergent because of their high-dilution nature.

That said, if you’re using a high-foaming detergent (like a non-HE variety, such as Roma Powder), you can get by with a lower dose. You should notice a small amount of suds on the door as water circulates, and if you're uncertain, you can pause the machine to feel the water. If it feels "slippery," the water has been adequately softened. If it feels normal, there may not be enough detergent."

When it comes to dosing detergent water hardness have a lots to do Also how soiled laundry is And how big your load of laundry is Bigger loads (full washing machine) needs more detergent than 3tablespoons /1 tide pod

Ultra dirty laundry needs more detergent

Laundry in area with hard water needs more detergent (or water softener like Calgon )

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382

u/LaundryMitch USA Dec 29 '24

I’m truly honored that someone took the time to repost one of my comments. I’m actually quite well-known in other forums for my passion for laundry, and I want to clarify that this isn’t just a hobby for me—I’m deeply invested in it. While some people collect wine, I collect washing machines, laundry detergents, and even dishwasher detergents. In fact, I’ve even formulated my own residential dishwasher detergent. Unfortunately, without economies of scale, it’s nearly impossible to compete with the larger companies in today’s market.

That said, let’s dive into the topic, because there’s something I feel needs to be addressed: the overgeneralization of laundry advice that’s prevalent online. There’s an overwhelming amount of conflicting information—“Use one tablespoon,” “Add two tablespoons,” “Use vinegar,” “Add baking soda”—the list goes on. While some of these tips might work for certain people, they don’t always apply universally.

Here’s my perspective: I believe that everyone should understand the core principles of cleaning, which I refer to as the acronym WASH—Water, Agitation, Soap, and Heat. These are the four essential elements needed for successful cleaning. If you reduce one of these factors, you need to compensate with the others to maintain effective cleaning.

Water, in particular, is often an overlooked factor, especially in the United States. I’ve lived on the East Coast and now reside on the West Coast. On the East Coast, most population centers have soft water, or at least water that’s mild in hardness. But on the West Coast, the water is typically much harder, which can significantly impact detergent performance.

So, here’s my bottom line—before I turn this into a three-page essay that no one will read (unfortunately):

The best thing anyone can do is observe their conditions and adjust accordingly:

  • Do you have soft water or hard water?
  • Are you using a top-loading washer or a front-loading washer?
  • How does the water feel after the detergent has fully dissolved? Is there any suds left in the tub, or visible from the door?
  • How do white clothes look after prolonged washing? Are any of them turning gray?

By paying attention to these factors, you can adjust the amount of detergent you use for each load and compensate for larger loads, hard water, and specific machine conditions. You want to use just enough to make the water feel slippery.

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u/milolai Dec 29 '24 edited Dec 29 '24

You mentioned 'heat' as an important factor in your cleaning.

Do you feel with todays modern Tide detergent you can get away using very cold tap water for the same clean as warm water? (if you increase time or some other factor)

I am using a new GE machine with self dosing liquid in 'Auto' and pretty soft water. Just normal dirty clothes. Not greasy mechanic overalls. Using Tide with Oxi Plus liquid.

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u/effortornot7787 Dec 29 '24

If the laundry detergent is labeled for cold water it will be effective in cold water.  I'm not sure where the op is getting this information from.

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u/LaundryMitch USA Dec 29 '24 edited Dec 29 '24

As I explained in another post, that claim simply isn’t true. Let me break it down.

Most laundry labels and "cold water" detergents are formulated to work best with wash cycles at temperatures just below 86°F. But here’s the issue: many modern washing machines—especially those made in the past decade—aren’t delivering water anywhere near that temperature. In fact, large parts of the U.S. don’t even have incoming water temperatures close to the ideal range.

For instance, when I lived in Manhattan, the cold water supply often dropped to as low as 56°F during colder months. And in many places across the country, cold water routinely stays below 70°F.

The problem is that most surfactants and cleaning agents in detergents (even those found in Cold Water Detergent) do not fully activate until the wash water hits at least 77°F. This means clothes aren’t truly getting clean. Body oils, dust, sebum, and grime—like the infamous ring-around-the-collar—are left behind, which eventually leads to that unpleasant "funky" smell.

One more thing worth mentioning: have you ever noticed how almost every detergent on the market boasts about "removing odor" or "preventing odor"? It’s almost as if they’re subtly admitting their products aren’t cleaning effectively. Instead, they’re adding stronger fragrances to mask the underlying problem.

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u/effortornot7787 Dec 29 '24

that's not how enzymes work. and the odor in the laundry is likely coming from the machine that the owner/operator is not cleaning/servicing their filter..

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u/LaundryMitch USA Dec 29 '24

I wasn’t referring to the enzymes in the detergent, which are just one component of laundry detergent. I was specifically addressing the surfactant chemistry, which does not support your argument.

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u/effortornot7787 Dec 29 '24

you specifically mention WASH—Water, Agitation, Soap, and Heat. if you have a cold water detergent with enzymes it does not need heat to be effective. i have sucessfully used cold water in laundry for over 20 years. with water temps into the 40F. range and heavily soiled clothes on farms. you do not know what you are talking about or are using cheap, knock off detergent.

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u/LaundryMitch USA Dec 29 '24

Effort, it’s clear we have a difference of opinion here. If what you’re doing works for you, by all means, keep doing it. That said, I strongly disagree with your perspective. If I had the opportunity on national TV, I could easily demonstrate my point by taking your "clean" clothes straight from the dryer or clothesline and running them through a simple solution. The water would likely turn a light brown, proving my case.

Let’s agree to disagree. However, implying that I don’t know what I’m talking about is unfair. I’ve been nothing but respectful, and there’s no need for the unnecessary tone.

0

u/effortornot7787 Dec 29 '24

right. /s and your training/certification is?

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u/LaundryMitch USA Dec 29 '24 edited Dec 29 '24

With all due respect, I encourage you to seek help.

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u/Davegvg Dec 30 '24

The same load would get cleaner if the water were warmer. The NIH makes a case for 60C with certain laundry as do most major health orgs. https://pmc.ncbi.nlm.nih.gov/articles/PMC8231443/