Six months ago, I opened my dishwasher after a full cycle and was hit with a smell I can only describe as “wet dog mixed with old food.” My dishes came out technically clean, but the machine itself? Not so much. That unpleasant moment sent me down a research rabbit hole, which is exactly how I landed on this Affresh dishwasher cleaner tablets review. I wanted a real solution — not just a temporary fix — so I committed to testing the product consistently over six full months before writing a single word about it.
My dishwasher is a mid-range Bosch that I’ve had for about three years. Until recently, I never cleaned it intentionally. I assumed the machine cleaned itself while cleaning everything else. Spoiler: it does not. Grease, limescale, and food residue were quietly building up inside the pump, hoses, and tub the entire time. The smell was just the most obvious symptom of a much bigger problem.
So I picked up the Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply and used it exactly as directed — one tablet per month — for six consecutive months. Here is everything I found.
Why I Chose Affresh Over Other Dishwasher Cleaners
Before buying anything, I spent about an hour reading through appliance forums and YouTube comments. Several options kept appearing: generic dishwasher cleaning pods, white vinegar and baking soda DIY methods, and a few brand-name tablets. Affresh came up repeatedly, especially in discussions around Bosch and Whirlpool appliances.
Two things pushed me toward Affresh specifically. First, the brand is actually recommended by several major appliance manufacturers, including Whirlpool. That carries real weight for me — appliance brands rarely endorse third-party products without good reason. Second, the ingredient approach appealed to me. Rather than relying purely on bleach (which can damage rubber seals over time), Affresh uses a surfactant-based formula designed to break down grease and mineral buildup without corroding internal components.
The DIY vinegar method also crossed my mind. However, after reading that high concentrations of vinegar can degrade rubber gaskets over repeated use, I decided against making it a regular routine. A purpose-built cleaner felt like the smarter long-term choice for a machine I depend on daily.
First Impressions: Unboxing and Build Quality
The packaging is straightforward and no-frills. Inside the box, you get six individually wrapped tablets, each sealed in a dissolvable plastic-free wrapper. The tablets themselves are solid and dense — they feel substantial, not cheap or crumbly. Each one is about the size of a large vitamin tablet, maybe slightly bigger.
I appreciated that the instructions were printed clearly right on the box. No hunting through folded inserts or squinting at small print. The directions are simple: empty the dishwasher, place one tablet in the bottom of the tub (not in the detergent dispenser), and run a normal hot water cycle. That’s genuinely it.
My first impression was cautiously optimistic. The product looked and felt like something that meant business. Still, I reminded myself that plenty of products look good and deliver very little. I was not going to celebrate until I had actual results to point to.
My Testing Protocol: Six Months, One Tablet at a Time
I kept my approach consistent throughout the entire testing period. On the first of each month, I ran a dedicated cleaning cycle using the Affresh tablet. No dishes inside — just the tablet and hot water. I used my Bosch’s “Auto” cycle, which runs at a higher temperature than the quick wash setting.
Between cleaning cycles, I maintained my normal dishwasher habits. That means loading it daily, using a standard detergent pod, and occasionally wiping down the door seal by hand. I did not change my detergent brand or water softener settings during this period. My goal was to isolate the Affresh variable as much as possible.
After each cleaning cycle, I noted three things: the smell when I opened the door, the visible cleanliness of the interior walls and spray arms, and how my dishes looked after the next regular wash. Keeping those three checkpoints consistent helped me track changes objectively rather than relying on vague impressions.
What the First Month Looked Like
After the very first cycle, I noticed the interior walls looked noticeably brighter. The film that I had assumed was just the color of the tub was actually a layer of mineral buildup. Seeing it gone after one wash was genuinely surprising. The smell improved too, though it did not disappear entirely after just one treatment.
What Actually Changed: Honest Results With a Timeline
Here is the honest breakdown of what I observed month by month:
- Month 1: Visible mineral film on the tub walls reduced significantly. The musty odor dropped from “noticeable every time” to “occasional and faint.”
- Month 2: Spray arm holes looked clearer. Dishes started coming out with fewer water spots, which I did not expect from a machine cleaner.
- Month 3: The interior smelled neutral after cycles. No more opening the door to that damp, lingering odor. This was the biggest quality-of-life improvement for me personally.
- Month 4: Results felt stable. No dramatic new improvements, but no regression either. The machine was staying consistently cleaner between treatments.
- Month 5: I noticed the rubber door gasket looked cleaner, with less visible grime in the folds. I had been wiping it manually before, but the tablet cycles seemed to help maintain it.
- Month 6: The interior of my dishwasher looked genuinely better than it had in years. Comparing photos from before the first treatment to now, the difference is clear.
I want to be straightforward about one thing: around month three, I almost stopped. The improvements had plateaued, and I wondered if I was just paying for a monthly ritual that no longer did anything new. However, I kept going — and I am glad I did. Months four through six showed me that the real value is maintenance, not just the initial clean. Consistent use prevented the buildup from returning, which ultimately is the point.
Did It Actually Improve My Dish Results?
Somewhat, yes. Cleaner spray arms and a cleaner pump do seem to correlate with better water distribution during a wash cycle. My glasses came out with fewer spots and streaks after month two. However, I cannot attribute that entirely to Affresh — I also switched to a rinse aid around the same time. So take that specific observation with a grain of salt.
The Downsides: What Affresh Does Not Do
No product deserves a dishonest review, so here are the genuine limitations I found during my six months of testing.
First, it does not replace manual cleaning. The filter at the bottom of my dishwasher still needed to be removed and rinsed by hand every month. Affresh does not dissolve trapped food particles — it targets limescale, mineral deposits, and odor-causing residue. If your filter is clogged, a tablet will not fix that.
Second, the initial results are not instant if your machine is severely neglected. My dishwasher had years of buildup inside it. One tablet made a visible difference, but it took two to three months before I felt the machine was truly clean. Someone expecting a single-use miracle might be disappointed.
Third, the cost adds up. At roughly $10 to $12 for a six-tablet box, you are spending around $20 to $24 per year on cleaner cycles alone. That is not a huge amount, but it is worth factoring in if you are budget-conscious.
Finally, I noticed the tablet wrapper sometimes did not fully dissolve during shorter cycles. Always run a full, hot cycle to get complete dissolution and maximum effectiveness.
Final Verdict: My Affresh Dishwasher Cleaner Tablets Review After 6 Months
After six months of consistent monthly use, I can say with confidence that the Affresh Dishwasher Cleaner, Helps Power Away Odor Causing Bacteria, Limescale, Mineral Deposits & Grime Inside Pump, Tub & Hoses, 6 Tablets, 6 Month Supply does exactly what it claims to do. The odors are gone. The interior is visibly cleaner. The machine runs with what feels like better water pressure through the spray arms. Those are real, observable improvements — not marketing language.
Who Should Buy This
- Anyone who has never cleaned the inside of their dishwasher and wants a simple starting point
- People dealing with persistent musty or food-related odors after a wash cycle
- Homeowners in hard-water areas where limescale buildup is a recurring problem
- Those who want a manufacturer-recommended maintenance routine without complicated steps
Who Might Want to Skip It
- People expecting it to replace manual filter cleaning or gasket scrubbing — it will not
- Those looking for a one-time fix rather than a monthly maintenance habit
- Budget shoppers who only run their dishwasher a few times per week and rarely notice odor issues
My overall rating: 4.5 out of 5. The half-point deduction is simply because it requires you to still do some manual cleaning on top of the tablet treatments. As a standalone maintenance solution, though, it genuinely delivers.
This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.
Considering a Full Year’s Supply? There’s an Option for That
If you run through the six-tablet box and want to commit to a full year of monthly maintenance, Affresh also offers a larger option. The Affresh Dishwasher Cleaner, 12 Tablets, 1 Year Supply is the logical next step once you have confirmed the product works for your machine. Buying the larger pack typically costs less per tablet than buying two six-packs separately. For anyone who found the monthly routine worthwhile — as I did — the 12-tablet option is the more economical long-term choice.
Either way, the routine is the same: one tablet, once a month, hot cycle. The only difference is how often you need to reorder. Given how much cleaner my dishwasher is today compared to six months ago, I will absolutely be continuing this habit well into the future.
